Hopper for sandblasting machine



FIG. 1 is a front right perspective view of a hopper showing my newdesign;

FIG. 2 is a front elevational view;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view.

The ornamental design for a hopper for a sandblasting machine, as shown.